Here is everything we know so far about the blaze:

32 firefighters and five officers from Malpas, Duffryn, New Inn, Roath, Maindee, Cardiff Central, Barry and Merthyr Tydfil were in attendance - with five fire appliances, two aerial ladder platforms, one heavy rescue tender and three water bowsers.

A fire service spokeswoman said crews were met with a "well-developed fire" throughout the three-storey building which caused the roof to collapse.

Neighbouring commercial and residential properties were evacuated as a precaution and Lower Dock Street was closed to pedestrians and traffic.

The Welsh Ambulance Service said a paramedic in a rapid response car and the Trust’s Hazardous Area Response Team attended the scene but was not required.

A spokeswoman for South Wales Fire and Rescue Service said: "The cause of the fire is unknown and an investigation will continue (on Wednesday morning)."

Pictures show the scene of the blaze

The blaze affected all three floors of the building (Image: Mathew Benford)

Emergency services received more than 20 calls shortly after 12pm on Tuesday (Image: Sam Dabb)

Crews gained control of the fire at about 3pm (Image: Rob Browne/ Walesonline)